
Custom Home Builder in Somerville MA
Building and Remodeling in Somerville
Licensed and insured general contractor serving Somerville homeowners with custom homes, additions, and renovations since 2004.
Your Somerville Home Has Good Bones — Let's Build on Them
Somerville is one of the most densely built communities in Massachusetts. Lots are tight. Setback requirements limit what you can do with the footprint. But the homes here — many of them multi-family Victorians and classic New England two-families — have solid structure and real character worth preserving.
When you need more space in Somerville, the answer is usually building up or rebuilding what's already there. That's exactly what we do. We've removed aging enclosed porches and replaced them with full two-story additions — expanding living rooms, creating new offices, and adding usable square footage without touching the lot line. The key is matching the existing architecture so the addition looks original to the home — not bolted on.
North Heritage Construction is a licensed and insured general contractor based in Massachusetts, serving Somerville and surrounding communities since 2004. Every project is managed by our own experienced team — coordinating every trade from start to finish.
2004
Est. in Massachusetts
5★
Google Rating
41
5-Star Reviews
MA
Licensed and Insured
Service Scope
What We Build in Somerville
Additions and renovations designed for Somerville's dense lots and historic housing stock.
Second-Story Additions
When you can't expand out, you go up. We build second-story additions over existing first-floor structures — adding bedrooms, offices, or full living space without changing your footprint. New framing, roofing, and exterior finishes are matched to the original home.
Porch-to-Addition Conversions
Many Somerville homes have enclosed porches that waste valuable square footage. We remove these aging structures and rebuild them as fully insulated, code-compliant additions — expanding living rooms, creating home offices, or adding new entry areas.
Full Home Renovations
Complete interior and exterior renovations that modernize your Somerville home while preserving its character. Andersen 400 series windows, Boral siding, PVC trim, layout reconfiguration, updated systems — managed from start to finish by one team.
Dormers
Shed dormers and gable dormers that convert underutilized attic space into functional rooms. A cost-effective way to add bedrooms, bathrooms, or a home office in Somerville's tight-lot housing.
Featured Project
Two-Story Addition — Somerville, Massachusetts
Removed an existing enclosed first-floor porch, rebuilt the structure, and added a full second story — expanding the living room and creating a new home office. Finished with Andersen 400 series windows, Andersen patio front door, PVC trim, and Boral siding. Complete project management by our experienced team.

Somerville, MA
Porch Demo and Two-Story Addition
Full project scope: existing enclosed porch demolition, new foundation, full two-story addition with expanded living room and new home office. Andersen 400 series windows, Andersen patio doors, Boral siding, and PVC trim — all matched to the original home's character.
Experienced Team — Every Phase Managed
Somerville's dense lots and tight setbacks require careful coordination. We handle the full scope of work — permits, demolition, foundation, framing, finish — under one roof. Our crew manages the site every day, with one point of contact and clear accountability throughout.
Site assessment and design coordination
All Somerville permits pulled and inspections managed
Demolition and structural removal
New foundation work and structural framing
Roofing tied into existing structure
Andersen 400 series windows and patio doors
Boral siding and PVC trim — matched to existing home
Clean site and final walkthrough
Why Somerville
Why Somerville Homeowners Choose North Heritage
Experience on Dense Lots
Somerville lots are tight. We know how to manage material staging, equipment access, and neighbor coordination on properties with minimal setbacks and shared driveways.
Local Permitting Knowledge
We handle all permits and inspections with the City of Somerville. We know the requirements, the process, and the timeline — so your project doesn't stall waiting on paperwork.
Experienced Team — Every Phase Managed
Our own crew handles all carpentry, framing, and finish work. For licensed trades, we coordinate trusted specialists we've worked with for years. Consistent quality and clear communication throughout.
Premium Materials, Seamless Finish
We use Andersen 400 series windows, Boral siding, and PVC trim — materials that perform in New England weather and age well. Every detail is matched to the existing home so the addition looks original.
Common Questions
Frequently Asked Questions
How much does a home addition cost in Somerville, MA?
Home additions in Somerville typically range from $200 to $400 per square foot depending on complexity and finish level. A two-story addition with full interior finish typically starts at $200,000. Somerville's dense lots often make building up the most practical option. We provide a detailed, itemized estimate after walking your property.
Do I need a permit for a home addition in Somerville?
Yes — all structural additions require a building permit in Somerville. North Heritage handles all permit applications and inspections as part of every project. Somerville's building department typically takes 4–8 weeks to approve permits; we factor this into the project schedule from day one.
How long does a home addition take in Somerville?
Most home additions take 3–6 months from permit approval to final walkthrough. A two-story addition with full interior finish typically takes 4–6 months. We give you a realistic schedule upfront and stick to it.
Can you work on tight lots in Somerville?
Yes — tight lots are the norm in Somerville and we build in them regularly. When the footprint can't expand outward, we build up. We assess setback requirements, zoning restrictions, and structural feasibility before recommending an approach — so you understand exactly what's possible before any work begins.
Will the addition match my existing Somerville home?
Yes — matching the existing structure is a core part of how we work. We match rooflines, siding, window styles, and trim details so the addition looks like it was always part of the original home. Somerville's Victorian and multi-family housing stock has distinct architectural character that we take seriously.
Do you use subcontractors?
Our own crew handles all carpentry, framing, roofing, siding, and interior finish work. For licensed trades — plumbing, electrical, HVAC, insulation, and plaster — we work with trusted specialists we've coordinated with for years. Our team manages the site every day.

Newton Is Where High Expectations Live
Newton is one of the most desirable communities in Greater Boston — and one of the most demanding markets for residential construction. Homeowners here have high standards, established neighborhoods with strict permitting requirements, and homes worth protecting. That's exactly the environment we thrive in.
We've built additions, renovated kitchens and bathrooms, and managed full home transformations across Newton since 2004. Every project is delivered by our experienced in-house team — from architectural drawings through final walkthrough.
Ready to Build
Let's Talk About Your Project
Free on-site consultation. No pressure, no obligation. Just a clear answer on what your project takes.
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Learn about our work, see completed projects, or get in touch.
